Question

check my answer!!!!!plz
Evaluate each polynomial for x = 3 and for x = −3.

−x2 − 3x3 − x4

Answer 1

x = 3
(-3)² -3(3)³ - 3^4
9 - 27 - 81
= -99

x = -3
-9 + 27 + 81
= 99

Answer 2

gir.. use a calculator

Answer 3

wat did u get first

Answer 4

-(3)^2-3(3)^3-(3)^4
-9-3(27)-81
-9-81-81
-9-162
-171

Answer 5

that is for x=3

Answer 6

here i will write it pretty...

Answer 7

-(-3) - 3(-3)3 - (-3)4
3 + 18 + 24 = 45

-(3)2 - 3(3)3 - (3)4
-6 - 27 -12 = -48

-48, 45

Answer 8

\[-(3)^2-3(3)^3-(3)^4=-(9)-3(27)-81=-9-81-81=-90-81=-171\]

Answer 9

thast is for x=3

Answer 10

x=3, then we have -171

Answer 11

\[x=-3\]
\[-(-3)^2-3(-3)^3-(-3)^4=-(9)-3(-27)-(81)=-9+81-81=-9+0=-9\]